Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Fishes
Native Transplant
Collection Info
Point Map
Species Profile
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10 results for Gambusia affinis (Western Mosquitofish)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1806756 AZGreenleeSan Francisco River2023 15040004 San Francisco 
1806725 AZMohave[No locality description provided]2023 15010010 Lower Virgin 
1806734 AZMohave[No locality description provided]2023 15010010 Lower Virgin 
1749782 KSRiley[No locality description provided]2023 10270101 Upper Kansas 
1729735 NJCumberland[No locality description provided]2023 02040206 Cohansey-Maurice 
1729508 NVClark[No locality description provided]2023 15010015 Las Vegas Wash 
1749821 NVLincoln[No locality description provided]2023 15010011 White 
1749972 NVLincoln[No locality description provided]2023 15010011 White 
1807818 NYRocklandHudson River2023 02030101 Lower Hudson 
1715801 OHSanduskySandusky River, backwater area approx. 2 miles downstream of I-90/Ohio Turnpike2023 04100011 Sandusky 

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/21/2026].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.